Patents by Inventor Michael Spiering

Michael Spiering has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Non-welded bore selector assembly
    Patent number: 5732773
    Abstract: A bore selector assembly having a unitary bottom section having primary and secondary inlet passageways extending therethrough, a unitary interior section having a bore therethrough, a unitary top section with a primary outlet passageway therethrough, and an outer sleeve extending over the interior section and securing the bottom, interior and top sections together.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 31, 1998
    Assignee: Sonsub, Inc.
    Inventors: William C. Parks, Michael Spiering